/*
 * Copyright 2009 The Apache Software Foundation Licensed under the Apache
 * License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law
 * or agreed to in writing, software distributed under the License is
 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

package org.apache.ibatis.ibator.generator.ibatis2.sqlmap.elements;

import java.util.Iterator;

import org.apache.ibatis.ibator.api.IntrospectedColumn;
import org.apache.ibatis.ibator.api.dom.xml.Attribute;
import org.apache.ibatis.ibator.api.dom.xml.TextElement;
import org.apache.ibatis.ibator.api.dom.xml.XmlElement;
import org.apache.ibatis.ibator.generator.ibatis2.Ibatis2FormattingUtilities;

/**
 * @author Jeff Butler
 */
public class BlobColumnListElementGenerator extends AbstractXmlElementGenerator
{

	public BlobColumnListElementGenerator()
	{
		super();
	}

	@Override
	public void addElements(XmlElement parentElement)
	{
		XmlElement answer = new XmlElement("sql"); //$NON-NLS-1$
		answer.addAttribute(new Attribute("id", //$NON-NLS-1$
				introspectedTable.getIbatis2SqlMapNamespace() + "."
						+ introspectedTable.getBlobColumnListId()));

		ibatorContext.getCommentGenerator().addComment(answer);

		StringBuilder sb = new StringBuilder();

		Iterator<IntrospectedColumn> iter = introspectedTable.getBLOBColumns()
				.iterator();
		while (iter.hasNext())
		{
			sb.append(Ibatis2FormattingUtilities.getSelectListPhrase(iter
					.next()));

			if (iter.hasNext())
			{
				sb.append(", "); //$NON-NLS-1$
			}

			if (sb.length() > 80)
			{
				answer.addElement(new TextElement(sb.toString()));
				sb.setLength(0);
			}
		}

		if (sb.length() > 0)
		{
			answer.addElement((new TextElement(sb.toString())));
		}
		if (ibatorContext.getPlugins().sqlMapBlobColumnListElementGenerated(
				answer, introspectedTable))
		{
			parentElement.addElement(answer);
		}
	}
}
